The phase of the moon has nothing whatever to do with the sex of the child.
In 14 days, he will most likely see a Full Moon. The lunar cycle takes about 29.5 days to complete, so 14 days from a New Moon would typically fall around the Full Moon phase. If he observes the moon during this time, it will appear fully illuminated.
You will see most of the moon's surface during the full moon phase when the entire illuminated side of the moon is facing Earth.
During a lunar eclipse, the moon is at it's full phase - directly opposite the sun.
Waxing gibbous moon, when the moon is 50%<x<100%.
The moon will disappear when it is in the new moon phase, as ironic as that sounds.
That is a myth. There is no scientific evidence to support the idea that conception is more likely to occur during a full moon. Fertility is influenced by a variety of factors, but the lunar cycle is not one of them.
Only during a full moon.
During a solar eclipse, the moon must be in the new moon phase.
which moon phase occurs during a solar eclipse?
During a new moon phase, the moon is located between the Earth and the Sun, so it is not visible from Earth.
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A full moon
In 14 days, he will most likely see a Full Moon. The lunar cycle takes about 29.5 days to complete, so 14 days from a New Moon would typically fall around the Full Moon phase. If he observes the moon during this time, it will appear fully illuminated.
You will see most of the moon's surface during the full moon phase when the entire illuminated side of the moon is facing Earth.
full moon
During a lunar eclipse, the moon is "full". During a solar eclipse the moon is "new".
A "lunar" eclipse can not happen during the new moon phase it can only happen when the moon is full.